That happiness !!! I was already a fan of extra Roomba 770 which made my mom's life even more fantastic. And I buy the Scooba cleans my little house every day ... I'm really happy. Faults: autonomy 40 minutes. Cleans my 50 m2 of living in one go but after that loose battery must be charged (+ | - 2 hours to charge). The embedded tasks can not leave at once but I do work once a day every day so there is never a trace encrusted is always clean. I bought it at AMAZON but repackaged device 300 euro instead of 500 new and I am delighted because saving 200 euro for the same result. So I recommend this option. And I even recommend this wonderful device that makes life simpler!